DeGale is the most high-profile of the defections after winning gold in the middleweight division in Beijing.

BBC: Edwards upbeat despite defections

The challenge for London was, "What's going to be the 'wow factor, '" said Michael Payne, the former marketing director of the International Olympic Committee and chairman of the international division of Crystal CG, a Beijing-based company that made the people-pixel graphics.

WSJ: Social Media

SAFE, a division of the central bank, also confirmed that Beijing would manage the transition by implementing a series of small steps.

FORBES: China Says Yuan Will Be Fully Convertible Soon

CAO's suspended chief executive Chen Jiulin said in an affidavit filed in November that the Beijing-based parent company had sold the shares to cover losses at its Singapore division.

BBC: NEWS | Business | China Aviation owner fined $4.8m